Patents by Inventor Kunihiro Tashiro

Kunihiro Tashiro has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20070211197
    Abstract: An object of the present invention is to provide a liquid crystal display, which can surely perform an instillation process used when liquid crystal is sealed between substrates in a cell process, and a fabrication method thereof. A liquid crystal display comprises a sealing material 6 made of a photo-curing type material which seals liquid crystal 22 sandwiched between substrates 4 and 16, and a shading film 8 having a shading area which overlays a red-colored layer 28 transmitting red light, a green-colored layer 26 transmitting green light and a blue-colored layer 24 transmitting blue light, wherein only the blue-colored layer 24 is formed in an area of the shading film contacting with the sealing material 6 and the photo-curing type material of the sealing material is structured to have a light reactive area for a wavelength of blue color band.
    Type: Application
    Filed: May 10, 2007
    Publication date: September 13, 2007
    Inventors: Kunihiro Tashiro, Takuya Yoshimi, Yoshio Koike, Satoru Imai, Hideaki Tsuda, Hiroyasu Inoue, Satoshi Murata, Hidehiko Suzuki, Hidefumi Yoshida, Tadashi Hasegawa, Yoji Taniguchi, Norimichi Nakayama, Hiroyuki Sugimura, Minoru Otani
  • Patent number: 7250996
    Abstract: The invention relates to a transflective liquid crystal display capable of display in both of transmissive and reflective modes and a method of manufacturing the same and provides a transflective liquid crystal display which can achieve high display characteristics in both of the transmissive and reflective modes.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: July 31, 2007
    Assignees: Fujitsu Limited, AU Optronics Corporation
    Inventors: Hidefumi Yoshida, Yasutoshi Tasaka, Kunihiro Tashiro, Katsufumi Ohmuro, Tsuyoshi Kamada, Kazuya Ueda, Masakazu Shibasaki
  • Publication number: 20070146589
    Abstract: On a glass substrate, gate bus lines, data bus lines, and TFTs are formed. Then, on the substrate, an insulating film, covering the gate bus lines, data bus lines and TFTs, is formed, and a positive type photoresist film is further formed thereon. Next, through exposure and development processes, the resist film is divided for each picture element and subjected to ultraviolet ray irradiation to harden only a surface layer thereof. Then, the resist film is subjected to heat treatment to form thereon wrinkle-form surface ruggedness of a uniform pattern, which is determined depending on the size of the resist film. Subsequently, reflection electrodes are formed on the resist film. The reflection electrodes are formed to overlap the gate bus line, data bus line and TFTS, and the regions between the adjacent reflection electrodes serve as light transmission regions.
    Type: Application
    Filed: February 20, 2007
    Publication date: June 28, 2007
    Inventors: Katsufumi Ohmuro, Norio Sugiura, Kunihiro Tashiro
  • Publication number: 20070146594
    Abstract: On a glass substrate, gate bus lines, data bus lines, and TFTs are formed. Then, on the substrate, an insulating film, covering the gate bus lines, data bus lines and TFTs, is formed, and a positive type photoresist film is further formed thereon. Next, through exposure and development processes, the resist film is divided for each picture element and subjected to ultraviolet ray irradiation to harden only a surface layer thereof. Then, the resist film is subjected to heat treatment to form thereon wrinkle-form surface ruggedness of a uniform pattern, which is determined depending on the size of the resist film. Subsequently, reflection electrodes are formed on the resist film. The reflection electrodes are formed to overlap the gate bus line, data bus line and TFTs, and the regions between the adjacent reflection electrodes serve as light transmission regions.
    Type: Application
    Filed: February 21, 2007
    Publication date: June 28, 2007
    Inventors: Katsufumi Ohmuro, Norio Sugiura, Kunihiro Tashiro, Yoshio Koike
  • Patent number: 7230669
    Abstract: An object of the present invention is to provide a liquid crystal display, which can surely perform an instillation process used when liquid crystal is sealed between substrates in a cell process, and a fabrication method thereof. A liquid crystal display comprises a sealing material 6 made of a photo-curing type material which seals liquid crystal 22 sandwiched between substrates 4 and 16, and a shading film 8 having a shading area which overlays a red-colored layer 28 transmitting red light, a green-colored layer 26 transmitting green light and a blue-colored layer 24 transmitting blue light, wherein only the blue-colored layer 24 is formed in an area of the shading film contacting with the sealing material 6 and the photo-curing type material of the sealing material is structured to have a light reactive area for a wavelength of blue color band.
    Type: Grant
    Filed: May 23, 2000
    Date of Patent: June 12, 2007
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kunihiro Tashiro, Takuya Yoshimi, Yoshio Koike, Satoru Imai, Hideaki Tsuda, Hiroyasu Inoue, Satoshi Murata, Hidehiko Suzuki, Hidefumi Yoshida, Tadashi Hasegawa, Yoji Taniguchi, Norimichi Nakayama, Hiroyuki Sugimura, Minoru Otani
  • Patent number: 7227606
    Abstract: A vertical alignment mode liquid crystal display device having an improved viewing angle characteristic is provided. The liquid crystal display device uses a liquid crystal having a negative anisotropic dielectric constant, and orientations of the liquid crystal are vertical to substrates when no voltage is applied, almost horizontal when a predetermined voltage is applied, and oblique when an intermediate voltage is applied. At least one of the substrates includes a structure as domain regulating means, and inclined surfaces of the structure operate as a trigger to regulate azimuths of the oblique orientations of the liquid crystal when the intermediate voltage is applied.
    Type: Grant
    Filed: November 21, 2003
    Date of Patent: June 5, 2007
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Arihiro Takeda, Katsufumi Ohmuro, Yoshio Koike, Shingo Kataoka, Takahiro Sasaki, Hideaki Tsuda, Hideo Chida, Makoto Ohashi, Kenji Okamoto, Hisashi Yamaguchi, Minoru Otani, Makoto Morishige, Noriaki Furukawa, Tsuyoshi Kamada, Yoshinori Tanaka, Atuyuki Hoshino, Shougo Hayashi, Hideaki Takizawa, Takeshi Kinjou, Makoto Tachibanaki, Keiji Imoto, Tadashi Hasegawa, Hidefumi Yoshida, Hiroyasu Inoue, Yoji Taniguchi, Tetsuya Fujikawa, Satoshi Murata, Manabu Sawasaki, Tomonori Tanose, Siro Hirota, Masahiro Ikeda, Kunihiro Tashiro, Kouji Tsukao, Yasutoshi Tasaka, Takatoshi Mayama, Seiji Tanuma, Yohei Nakanishi
  • Patent number: 7224421
    Abstract: A vertical alignment mode liquid crystal display device having an improved viewing angle characteristic uses a liquid crystal having a negative anisotropic dielectric constant, and orientations of the liquid crystal are vertical to substrates when no voltage being applied, almost horizontal when a predetermined voltage is applied, and oblique when an intermediate voltage is applied. At least one of two substrates includes a structure as domain regulating means, to regulate azimuths of the oblique orientations of the liquid crystal when the intermediate voltage is applied.
    Type: Grant
    Filed: October 12, 2000
    Date of Patent: May 29, 2007
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Arihiro Takeda, Katsufumi Ohmuro, Yoshio Koike, Shingo Kataoka, Takahiro Sasaki, Takashi Sasabayashi, Hideaki Tsuda, Hideo Chida, Makoto Ohashi, Kenji Okamoto, Hisashi Yamaguchi, Minoru Otani, Makoto Morishige, Noriaki Furukawa, Tsuyoshi Kamada, Yoshinori Tanaka, Atuyuki Hoshino, Shougo Hayashi, Hideaki Takizawa, Takeshi Kinjou, Makoto Tachibanaki, Keiji Imoto, Tadashi Hasegawa, Hidefumi Yoshida, Hiroyasu Inoue, Yoji Taniguchi, Tetsuya Fujikawa, Satoshi Murata, Manabu Sawasaki, Tomonori Tanose, Siro Hirota, Masahiro Ikeda, Kunihiro Tashiro, Kouji Tsukao, Yasutoshi Tasaka, Takatoshi Mayama, Seiji Tanuma, Yohei Nakanishi
  • Publication number: 20070103607
    Abstract: The invention has an object to provide a liquid crystal display device of an excellent viewing angle characteristic and high brightness, including: sandwiching liquid crystals containing polymerizable monomers between a first substrate with a pixel electrode having a micro slit and a second substrate facing the first substrate; polymerizing the monomers with voltage applied to the liquid crystals; and controlling an alignment orientation of the liquid crystals to a direction of extending the micro slit, wherein the pixel electrode includes: a direct coupling part electrically connected to a switching element; a capacitive coupling part electrically insulated from the switching element, and forming capacitance with a control capacitance electrode having a same potential as that of a source electrode of the switching element; and a space between the direct and capacitive coupling parts, wherein directions of extending the micro slit in the adjacent direct and capacitive coupling parts are orthogonal to each oth
    Type: Application
    Filed: May 26, 2006
    Publication date: May 10, 2007
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Kazutaka Hanaoka, Katsufumi Ohmuro, Kunihiro Tashiro, Jin Hirosawa, Norio Sugiura, Kengo Kanii, Shota Makimoto, Yasuhiro Ohno, Isao Tsushima, Tomonori Tanose, Takashi Takagi, Tetsuya Fujikawa, Takahiro Sasaki
  • Patent number: 7212266
    Abstract: The liquid crystal display comprises a first substrate 2 including a gate bus line 12a, a data bus line 28, a thin film transistor 18 formed near an intersection between the gate bus line 12a and the data bus line 28, and a pixel electrode 52 including a transmission electrode 32a electrically connected to the thin film transistor 18 and a reflection electrode 48b electrically connected to the transmission electrode 32a; a second substrate 4 opposed to the first substrate 2 and including an opposed electrode 68 opposed to the pixel electrode 52; and a liquid crystal layer 6 sealed between the first substrate 2 and the second substrate 4. The reflection electrode 48b is formed over another gate bus line 12b which is different from the gate bus line 12a, with an insulation layer 40 formed therebetween. The decrease of a voltage applied between the reflection electrode 48b and the opposed electrode 68 can be prevented while the space which can be not used as the transmission region can be utilized.
    Type: Grant
    Filed: August 2, 2004
    Date of Patent: May 1, 2007
    Assignees: Fujitsu Limited, AU Optronics Corporation
    Inventors: Kunihiro Tashiro, Yasutoshi Tasaka, Katsufumi Ohmuro, Hidefumi Yoshida, Yoshinori Tanaka, Norio Sugiura, Seiji Doi, Manabu Sawasaki, Tomonori Tanose, Isao Tsushima, Tetsuya Fujikawa, Tomoshige Oda
  • Patent number: 7209107
    Abstract: On a glass substrate, gate bus lines, data bus lines, and TFTs are formed. Then, on the substrate, an insulating film, covering the gate bus lines, data bus lines and TFTs, is formed, and a positive type photoresist film is further formed thereon. Next, through exposure and development processes, the resist film is divided for each picture element and subjected to ultraviolet ray irradiation to harden only a surface layer thereof. Then, the resist film is subjected to heat treatment to form thereon wrinkle-form surface ruggedness of a uniform pattern, which is determined depending on the size of the resist film. Subsequently, reflection electrodes are formed on the resist film. The reflection electrodes are formed to overlap the gate bus line, data bus line and TFTs, and the regions between the adjacent reflection electrodes serve as light transmission regions.
    Type: Grant
    Filed: November 4, 2003
    Date of Patent: April 24, 2007
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Katsufumi Ohmuro, Norio Sugiura, Kunihiro Tashiro
  • Patent number: 7199855
    Abstract: An object of the present invention is to provide a liquid crystal display, which can surely perform an instillation process used when liquid crystal is sealed between substrates in a cell process, and a fabrication method thereof. A liquid crystal display comprises a sealing material 6 made of a photo-curing type material which seals liquid crystal 22 sandwiched between substrates 4 and 16, and a shading film 8 having a shading area which overlays a red-colored layer 28 transmitting red light, a green-colored layer 26 transmitting green light and a blue-colored layer 24 transmitting blue light, wherein only the blue-colored layer 24 is formed in an area of the shading film contacting with the sealing material 6 and the photo-curing type material of the sealing material is structured to have a light reactive area for a wavelength of blue color band.
    Type: Grant
    Filed: May 20, 2002
    Date of Patent: April 3, 2007
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Takuya Yoshimi, Kunihiro Tashiro, Yoshio Koike, Satoru Imai, Satoshi Murata, Norimichi Nakayama, Hiroyuki Sugimura
  • Publication number: 20070064187
    Abstract: A vertically alignment mode liquid crystal display device having an improved viewing angle characteristic is disclosed. The disclosed liquid crystal display device uses a liquid crystal having a negative anisotropic dielectric constant, and orientations of the liquid crystal are vertical to substrates when no voltage being applied, almost horizontal when a predetermined voltage is applied, and oblique when an intermediate voltage is applied. At least one of the substrates includes a structure as domain regulating means, and inclined surfaces of the structure operate as a trigger to regulate azimuths of the oblique orientations of the liquid crystal when the intermediate voltage is applied.
    Type: Application
    Filed: November 16, 2006
    Publication date: March 22, 2007
    Inventors: Arihiro Takeda, Katsufumi Ohmuro, Yoshio Koike, Shingo Kataoka, Takahiro Sasaki, Takashi Sasabayashi, Hideaki Tsuda, Hideo Chida, Makoto Ohashi, Kenji Okamoto, Hisashi Yamaguchi, Minoru Otani, Makoto Morishige, Noriaki Furukawa, Tsuyoshi Kamada, Yoshinori Tanaka, Atuyuki Hoshino, Shougo Hayashi, Hideaki Takizawa, Takeshi Kinjou, Makoto Tachibanaki, Keiji Imoto, Tadashi Hasegawa, Hidefumi Yoshida, Hiroyasu Inoue, Yoji Taniguchi, Tetsuya Fujikawa, Satoshi Murata, Manabu Sawasaki, Tomonori Tanose, Siro Hirota, Masahiro Ikeda, Kunihiro Tashiro, Kouji Tsukao, Yasutoshi Tasaka, Takatoshi Mayama, Seiji Tanuma, Yohei Nakanishi
  • Publication number: 20070030421
    Abstract: A liquid crystal display apparatus including a pair of substrates having electrodes and vertical alignment layers. A liquid crystal having a negative anisotropy of dielectric is inserted between the substrates. Each substrate has linearly arranged alignment control structures for controlling the alignment of the liquid crystal. The alignment control structures are formed in the form of projections or slits. Each alignment control structure is formed of a plurality of constituent units. In addition, means for forming a boundary of alignment of liquid crystal (singular point in director field) to control the liquid crystal located on the alignment control structures.
    Type: Application
    Filed: October 10, 2006
    Publication date: February 8, 2007
    Inventors: Takahiro Sasaki, Arihiro Takeda, Katsufumi Ohmuro, Hideo Chida, Yoshio Koike, Kimiaki Nakamura, Kunihiro Tashiro
  • Publication number: 20070024561
    Abstract: In accordance with a method of manufacturing a liquid crystal display device including, in a picture element, a first sub-picture-element region where a threshold voltage of the transmittance-applied voltage characteristic is Vth1 and a second sub-picture-element region where a threshold voltage of the transmittance-applied voltage characteristic is Vth2, liquid crystal, which polymerizable components are added to, is filled into the space between a first and a second substrates; thereafter, a voltage V1 slightly higher than the threshold voltage Vth1 is applied to a liquid crystal layer, and is held for a certain length of time; subsequently, a voltage V2 slightly higher than the threshold voltage Vth2 is applied to the liquid crystal layer, and is held for a certain length of time; additionally, a voltage V3 higher than a white-displaying voltage which is applied while the liquid crystal display device is in actual use is applied to the liquid crystal layer, and is held for a certain length of time; then, t
    Type: Application
    Filed: January 26, 2006
    Publication date: February 1, 2007
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Kazutaka Hanaoka, Yohei Nakanishi, Katsufumi Ohmuro, Kunihiro Tashiro, Norio Sugiura, Kengo Kanii
  • Patent number: 7167224
    Abstract: A vertically alignment mode liquid crystal display device having an improved viewing angle characteristic is disclosed. The disclosed liquid crystal display device uses a liquid crystal having a negative anisotropic dielectric constant, and orientations of the liquid crystal are vertical to substrates when no voltage being applied, almost horizontal when a predetermined voltage is applied, and oblique when an intermediate voltage is applied. At least one of the substrates includes a structure as domain regulating means, and inclined surfaces of the structure operate as a trigger to regulate azimuths of the oblique orientations of the liquid crystal when the intermediate voltage is applied.
    Type: Grant
    Filed: October 4, 2000
    Date of Patent: January 23, 2007
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Arihiro Takeda, Katsufumi Ohmuro, Yoshio Koike, Shingo Kataoka, Takahiro Sasaki, Takashi Sasabayashi, Hideaki Tsuda, Hideo Chida, Makoto Ohashi, Kenji Okamoto, Hisashi Yamaguchi, Minoru Otani, Makoto Morishige, Noriaki Furukawa, Tsuyoshi Kamada, Yoshinori Tanaka, Atuyuki Hoshino, Shougo Hayashi, Hideaki Takizawa, Takeshi Kinjou, Makoto Tachibanaki, Keiji Imoto, Tadashi Hasegawa, Hidefumi Yoshida, Hiroyasu Inoue, Yoji Taniguchi, Tetsuya Fujikawa, Satoshi Murata, Manabu Sawasaki, Tomonori Tanose, Siro Hirota, Masahiro Ikeda, Kunihiro Tashiro, Kouji Tsukao, Yasutoshi Tasaka, Takatoshi Mayama, Seiji Tanuma, Yohei Nakanishi
  • Publication number: 20070013862
    Abstract: An object of the present invention is to provide a liquid crystal display, which can surely perform an instillation process used when liquid crystal is sealed between substrates in a cell process, and a fabrication method thereof. A liquid crystal display comprises a sealing material 6 made of a photo-curing type material which seals liquid crystal 22 sandwiched between substrates 4 and 16, and a shading film 8 having a shading area which overlays a red-colored layer 28 transmitting red light, a green-colored layer 26 transmitting green light and a blue-colored layer 24 transmitting blue light, wherein only the blue-colored layer 24 is formed in an area of the shading film contacting with the sealing material 6 and the photo-curing type material of the sealing material is structured to have a light reactive area for a wavelength of blue color band.
    Type: Application
    Filed: September 21, 2006
    Publication date: January 18, 2007
    Inventors: Kunihiro Tashiro, Takuya Yoshimi, Yoshio Koike, Satoru Imai, Hideaki Tsuda, Hiroyasu Inoue, Satoshi Murata, Hidehiko Suzuki, Hidefumi Yoshida, Tadashi Hasegawa, Yoji Taniguchi, Norimichi Nakayama, Hiroyuki Sugimura, Minoru Otani
  • Publication number: 20060270085
    Abstract: On a glass substrate, gate bus lines, data bus lines, and TFTs are formed. Then, on the substrate, an insulating film, covering the gate bus lines, data bus lines and TFTs, is formed, and a positive type photoresist film is further formed thereon. Next, through exposure and development processes, the resist film is divided for each picture element and subjected to ultraviolet ray irradiation to harden only a surface layer thereof. Then, the resist film is subjected to heat treatment to form thereon wrinkle-form surface ruggedness of a uniform pattern, which is determined depending on the size of the resist film. Subsequently, reflection electrodes are formed on the resist film. The reflection electrodes are formed to overlap the gate bus line, data bus line and TFTs, and the regions between the adjacent reflection electrodes serve as light transmission regions.
    Type: Application
    Filed: August 7, 2006
    Publication date: November 30, 2006
    Inventors: Katsufumi Ohmuro, Norio Sugiura, Kunihiro Tashiro, Yoshio Koike
  • Publication number: 20060244881
    Abstract: The invention has an object to provide a liquid crystal display in which a wide angle of view is obtained and a response time at a halftone can be shortened by regulating an alignment orientation of a liquid crystal by the use of a polymer fixation system in which a liquid crystal layer containing a polymerizable component is sealed between substrates, and the polymerizable component is polymerized while a voltage is applied to the liquid crystal layer to fix a liquid crystal alignment. A liquid crystal layer containing a polymer for regulating a pretilt angle of a liquid crystal molecule and a tilt direction at a time of driving is sealed between two substrates arranged opposite to each other.
    Type: Application
    Filed: June 21, 2006
    Publication date: November 2, 2006
    Inventors: Takahiro Sasaki, Kazutaka Hanaoka, Tsutomu Seino, Yohei Nakanishi, Seiji Tanuma, Kimiaki Nakamura, Yuichi Inoue, Masakazu Shibasaki, Hideaki Tsuda, Yoshio Koike, Yasutoshi Tasaka, Hidefumi Yoshida, Kunihiro Tashiro
  • Publication number: 20060238674
    Abstract: The gate bus lines, the data bus lines, TFTs, etc. are formed on one glass substrate. Also, linear structures arranged in parallel with the gate bus lines are formed simultaneously with any one of the gate bus lines and the data bus lines. Then, a positive resist film is formed over the substrate, and then only a surface layer is cured by irradiating the ultraviolet ray onto the resist film. Then, the annealing is applied to the resist film. Since the linear structures are present under the resist film, a cross section of the resist film is corrugated by the annealing and thus wrinkle-like roughness extending in the almost same direction as the structures are formed on the surface. Then, the reflective electrode is formed on the resist film.
    Type: Application
    Filed: June 20, 2006
    Publication date: October 26, 2006
    Inventors: Norio Sugiura, Katsufumi Ohmuro, Kunihiro Tashiro
  • Publication number: 20060209237
    Abstract: A semi-transparent-type liquid crystal display device comprises a liquid crystal panel including a first substrate, a second substrate disposed behind the first substrate, and a liquid crystal layer confined between the first and second substrates, the liquid crystal panel being formed with picture element regions each having a filter of any of red, green and blue color, a backlight source disposed behind the liquid crystal panel, and a reflection member disposed further behind the backlight source, each of the plurality of picture element regions including therein a reflection region and a transmission region, wherein, in each of the picture element regions, the color filter is provided with an opening in correspondence to the reflection region, the opening provided in the filter of the green color having the largest area and having an area ratio of 50% or larger but equal to or smaller than 100% with respect to the reflection region.
    Type: Application
    Filed: November 23, 2005
    Publication date: September 21, 2006
    Inventors: Kunihiro Tashiro, Yasutoshi Tasaka, Hidefumi Yoshida, Manabu Sawasaki, Tomonori Tanose